Jo Setchell

And also, simply, diversity of partner choice.

So we have sexual behaviour between males and females, between males and males, between females and females...

In some species, like bonobo, it's famous for involving all the different age classes too, which we don't do as humans, or at least legally we don't do as humans.

I suspect that monkeys don't need that sort of accessory in the way that bonobos might, I don't know, because they have their own accessories, like they have bright red noses and blue stripes on their cheeks and colourful genitalia.

Maybe they don't need a rat on their head.

Thank you for that.

So if you have a bright red nose, you don't need any of that, because you can just look at someone else's nose and say, oh, OK, I know what's going on.

So there's a lot of coordination involved.

Yeah, definitely.

So if you're living just as two and you either spend all your time together, which can be involved with coordination and giving up what you wanted to do to coordinate with your partner, or there are some species, lemurs actually, rather than monkeys, where they coordinate within a home range, but they're not together.

They just keep in touch by yelling at each other.

Focalising.

Let alone how cramped it is if you want to be in a TT monkey costume.

I would completely agree that we need to immerse ourselves into the lives of primates.

It's not typical primatology.

There are some people who do it, and it's very useful.

Then you have the opportunity to describe things like when part are lost, for example.

So if a...

member of one of those long-term pairs dies, you see in the other what is very obvious to us that we assume is grief.

From a more natural science perspective, it's difficult to know how you measure that.